http://z5lcip4dafatwwa6hvyibizpzwycvwp67cjga3hzjhxhwvuyaqavxnid.onion/tech/941
Its the same reason they leave js fully enabled by default, to make everything work even though its stupid unsafe and allows fingerprinting. Brave does random but cant or hasnt done everything random yet leaving users still fingerprinted, and some things are randomized on windows but not linux, its a clusterfuck that doesnt really work.